The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 2002
Filed:
Aug. 29, 2000
William P. Shermer, Greensboro, NC (US);
Edward A. Payne, Greensboro, NC (US);
Seifollah S. Nanaji, Greensboro, NC (US);
Marconi Commerce Systems Inc., Greensboro, NC (US);
Abstract
A fuel dispenser system having a storage tank and a fuel delivery hose extending from the storage tank and terminating at a nozzle. A vapor recovery line extends between the nozzle and the storage tank. The vapor recovery line extends between the nozzle and the storage tank and has a section with a first larger diameter and a second section having a smaller diameter. A vapor pump is operatively connected to the vapor recovery line for moving vapor along said vapor recovery line. A chamber is positioned along the vapor recovery line and includes inlet and outlet ports, and a main sensor chamber. The inlet port connects to the vapor recovery line at a point having the larger diameter. The outlet port connects a point of the smaller diameter. Each of the ports connects to the main sensor chamber where a sensor is positioned for determining the vapor concentration.